Abstract: An improved contact mechanism for a switch is disclosed in which impact between contacts is reduced or moderated to minimize rebound of the contacts thereby to prolong the life of the switch. The contacts are sufficiently spaced apart from each other when the switch is in a stable open position, but when the switch is operated, the movable contact is first moved gradually to an intermediate position toward the fixed contact whereafter it is moved rapidly to the fixed contact over a thus reduced distance.

Abstract: This invention provides an electronic scale printer, and more particularly an electronic scale printer in which a printer is connected electrically to the electronic scale used in a department store or supermarket etc., and required data are printed on a printing sheet under an instruction from the electronic scale and issued from the printer. The invention provides a printer capable of issuing both a label and a receipt through one printing means and more particularly an electronic scale printer in which either a label or a receipt corresponding to the kind of printing sheet stored in a cassette is printed and issued under proper replacement of the cassette having printing sheet for label stored therein with a cassette having a printing sheet for receipt stored therein.

Abstract: This invention relates to polyprenylcarboxylic acid amides represented by the following general formula (I): ##STR1## wherein n is an integer of from 1 to 4, a and b stand for hydrogen atoms or a direct valence bond between the carbon atoms to which a and b are attached, c and d stand for hydrogen atoms or a direct valence bond between the carbon atoms to which c and d are attached, and R.sub.1 and R.sub.2 stand for a hydrogen atom, a lower alkyl group, a phenyl group which may be substituted or an aralkyl group which may be substituted, or R.sub.1 and R.sub.2 form, together with the adjacent nitrogen atom, a 5- or 6-membered heterocyclic ring which may contain other hetero atoms or may be substituted,and also to a process for the preparation of said polyprenylcarboxylic acid amide and to a pharmaceutical composition for treating liver dysfunction comprising said polyprenylcarboxylic acid amide.

Abstract: This invention provides an electronic scale printer, and more particularly an electronic scale printer in which a printer is connected electrically to the electronic scale used in a department store or supermarket etc., and required data are printed on a printing sheet under an instruction from the electronic scale and issued from the printer. The invention provides a printer capable of issuing both a label and a receipt through one printing means and more particularly an electronic scale printer in which either a label or a receipt corresponding to the kind of printing sheet stored in a cassette is printed and issued under proper replacement of the cassette having printing sheet for label stored therein with a cassette having a printing sheet for receipt stored therein.

Abstract: An .alpha.,.beta.-dihydropolyprenyl derivative having the formula (I): ##STR1## wherein X represents a group of --COOR.sub.1 or --CH.sub.2 OR.sub.2 in which R.sub.1 is the hydrogen atom or an alkyl group having one to four carbon atoms and R.sub.2 is the hydrogen atom or an aliphatic acyl group having one to four carbon atoms; and n is an integer of one to four. A process for the preparation of the .alpha.,.beta.-dihydropolyprenyl derivative and a therapeutic agent for treatment of liver diseases comprising the same are also disclosed.

Abstract: A slide switch having at least one row of terminals arranged along a substrate has a slider movable along the terminals. The slider carries a movable contact element biased resiliently towards the terminals so as to connect separate pairs of these terminals electrically together during movement of the slider. Each of the terminals has an exposed contact portion having an arcuate surface and the movable contact element has a generally corrugated shape formed by three arcuate protrusions forming convex surfaces facing the terminals and each spaced by trough portions presenting concave surfaces facing the terminals. In this way, the arcuate surfaces of the exposed contact portions can be adapted to fit within the trough portions upon movement of the slider into particular positions so as to stabilize the slider in these positions.

Abstract: An .alpha.,.beta.-dihydropolyprenyl derivative having the formula (I): ##STR1## wherein X represents a group of --COOR.sub.1 or --CH.sub.2 OR.sub.2 in which R.sub.1 is the hydrogen atom or a lower alkyl group and R.sub.2 is the hydrogen atom or an aliphatic acyl group having one to four carbon atoms; and n is an integer of one to four. A process for the preparation of the .alpha.,.beta.-dihydropolyprenyl derivative and a therapeutic agent for treatment of liver diseases comprising the same are also disclosed.

Abstract: Polyprenyl carboxylic acid amides of the formula ##STR1## process for their preparation and use thereof for treating liver dysfunction are disclosed.

Abstract: A water-in-oil emulsion explosive comprising 1 to 10% by weight of a continous phase of a petroleum wax having a melting point of 160.degree. F. or more and containing 30% by weight or more of a urea-non-adduct component, 50 to 95% by weight of a discontinuous phase of an aqueous oxidizer solution containing ammonium nitrate as a major component, and 0.5 to 7% by weight of an emulsifier of an organic surface active agent wherein an unsaturated long-chain aliphatic acid constitutes a hydrophobic group.

Abstract: A method of treating a combustion exhaust gas containing nitrogen oxides comprises:A first step of removing nitrogen oxides by treating a mixture of the exhaust gas, oxygen and ammonia in the absence of hydrogen or in the presence of lower than 10 mole ratio of hydrogen to ammonia at a temperature from 700.degree. C to 1300.degree. C andA second step of adjusting a mole ratio of hydrogen to ammonia in the pretreated exhaust gas to higher than 3 and treating the mixed gas at a temperature from 490.degree. C to 700.degree. C.

Abstract: Warm-blooded animals having hyperammoniemia are treating by administration of a pharmaceutical composition comprising nicotinohydroxamic acid.